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Explain polonium crystallizes in a simple cubic lattice the Po atoms are at the lattice points only. Explain if the density of the metal is 9.31 g/cm3 define what is the unit cell edge length in pm?
When 5.0 g of an unknown compound is dissolved in 200.0 g of carbon tetrachloride, CCl4, the freezing point of the solution is -31.8 degC. The freezing point of pure carbon tetrachloride is -22.3degC
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
firstly in order to perturb the structure of protein jyou can make any substitution you wish for aa21 the 21st
The specific heat of an unknown metal is found to be 0.233 J/K g. The Law of Dulong and Petit predicts a molar heat capacity of 26 J/K mol. Use this law to estimate the molar mass of the metal.
The molar mass of a protein is determined from a measurement of the osmotic pressure. If 0.01 grams of the protein is dissolved in 1 ml. and osmotic pressure
What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100 g of H2O. Kf for water is 1.86oC/m
How many kilojoules ore released when 3.6 L H2(g) and 2.4 L F2(g) react to form HF(g) at a constant pressure of 1 atm and initial and final temeratures of 25 C
Balance the following equation in standard form and determine the SUM of the coefficients. FeO(s) + O2(g) --> Fe 203(s)
Butyric acid, HC4H7O2, has a Ka of 1.51 x 10^-5. Calculate the pH of a solution of butyric acid where 15.2 g of the acid was added to water to make 1.5 liters of solution.
kilimanjaro in tanzania is the tallest peak in africa 19340 ft.. on a particular day the barometric pressure at the top
A sample of CO2 has a mass of 50 grams. what is the number of molecules of carbon dioxide in the 50 gram sample
Draw a potential energy diagram for the rotation about the 3,4 carbon-carbon bond plotting potential energy versus torsion angle for 2-methylhexane
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